ABL electronic PIC Microcontrollers PIC16 - Manual (Page 227)

mikroC provides a library for handling Manchester coded signals. Manchester
code is a code in which data and clock signals are combined to form a single self-
synchronizing data stream; each encoded bit contains a transition at the midpoint
of a bit period, the direction of transition determines whether the bit is a 0 or a 1;
second half is the true bit value and the first half is the complement of the true bit
value (as shown in the figure below).
Notes: Manchester receive routines are blocking calls (
Man_Receive_Config
,
Man_Receive_Init
,
Man_Receive
). This means that PIC will wait until the
task is performed (e.g. byte is received, synchronization achieved, etc). Routines
for receiving are limited to a baud rate scope from 340 ~ 560 bps.
Man_Receive_Config
Man_Receive_Init
Man_Receive
Man_Send_Config
Man_Send_Init
Man_Send
MikroElektronika: Development tools - Books - Compilers
219
page
mikroC - C Compiler for Microchip PIC microcontrollers
mikroC
making it simple...
Manchester Code Library
1 0
Manchest er RF_Send_Byt e format
Bi-phase coding
0 0 0 0 0 0 1 1 1 1 1
Example of transmission
St 1 St 2 Ct r B7 B6 B5 B4 B3 B2 B1 B0
2.4m s
Library Routines